Wrench



(No Model.)

A. LANGSTROM.

WRENCH.

No. 327,559. Patented Oct. 6, 1885.

Warren STATES PATENT other.

ALBERT LANGSTROM, OF COUNCIL BLUFFS, IOWA.

WRENCH.

srzeorrrca'rron forming part of Letters Patent No. 327.559, datedOctober 6, 1885.

Application filed July 7, 1885. Serial No. 170,903.

To all whom it may concern.-

Be it known that I, ALBERT LANGSTROM, of Council Bluffs, in the countyof Pottawattamie and State of Iowa, have invented certain new and usefulImprovements in Wrenches; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to an improvement in wrenches; the object of thesame being to provide a device of the above character by means of whichnuts and other like devices when in such position relative to otherobjects as to prevent the wrench from receiving a continuous turn may betightened without removing the wrench from contact therewith. A furtherobject is to provide awrench of the above character with devices wherebythe automatic action may be detained and thejaw locked in rigidadjustment. A further object is to provide a wrench of the abovecharacter which shall be simple and economical in construction, anddurable and efficient in use; and with these ends in view my inventionconsists in the certain features of construction and combinations ofparts, as will be hereinafter fully described, and pointed out in theclaims.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewof my invention, and Fig. 2 is a view thereof in side elevation, showingthe jaw in tilted adjustment on the nut.

A represents the wrench-handle,preferably shaped as shown, provided withthe enlarged portion B, and the extended finger O,the same being'formedintegral therewith, or separate, if preferred, and secured thereto andadapted to serve the purpose of a lever. The enlarged portion B isprovided with the open recess E, in which is pivoted or hinged one endof the rectangular bar F, the same being provided with the top andbottom threads, G. The bar F is provided with the sliding jaw H, thesame being provided at its rear with the annular recess I and theshoulder J, adapted to receive the rim of the circular nut K, which isprovided with the internal screw-threads L,

(No model.)

adapted to engage the threads G, whereby, when the nutK is actuated,thesliding jaw H is caused to move forward or recede, as may be desired. Tothe forward part of the bar F is pivoted the spring-actuated tilting jawM. The forward face of the jaw is provided with the rectangular openingN, formed slightly larger than the bar, the end of which passes throughthe said opening and is allowed suitable play therein. The bottom of theopening N is inclined inwardly and upwardly, forming an oblique surface,to which is secured one end of the spiral or other spring 0, theopposite end of which is adapted to engage the recess P formed in theforward lower edge of the bar F. The said jaw M is provided on its innerface with the rectangular-shaped recess Q, the same being curved, asshown, and provided near its upper edge with the beveled shoulder R,against which is adapted to impinge the shoulder S formed on the end ofthe lever C, the shoulder S being partially beveled, whereby theshoulder B may be enabled to slide over the shoulder S on the lever,when a pressure is exerted on the lower end of the jaw M. The recess Eis provided with the spiral or other spring T, one end of which restsagainst the bar F and the opposite end impinges against the upper edgeof the recess. Through the enlarged portion B and the recess E passesthe set-screw V, one end of which is adapted to impinge against the barF, and when so impinging the lever G is locked against the jaw M, whichis in consequence prevented from tilting.

Having fully described the construction of my invention, I will proceedto describe the operation of the same.

Supposing the set-screw V to be elevated, the sliding jaw is brought incontact with the nut. The wrench is then turned as far as it may befound convenient. If a fresh grip is desired for a new turn, thewrench-handle is elevated, whereby the lower end of the jaw M is causedto bear with sufficient force against the lower edge of the nut to causethe lower section of the jaw M to tilt outward and enable the shoulder Rto slide over the shoulder S, and thus enable the jaws to obtain a newgrip upon the nut, the tilting jaw M being forced to its normal positionby means of the spring O,actuating the said jaw. When it is convenientto use the wrench in such position that a continuous rotation thereof ispossible, or if from other reasons it is desired, the tilting jaw M maybe locked against movement by means of the set-screw V being brought incontact with the bar F, whereby the lever C will be locked againstmotion, and thus cause the shoulders R and S to impinge tightly againsteach other in such manner as to prevent the tilting of the jaw Mregardless of the amount of strain brought against the same. I wouldhave it understood that I do not limit myself to the exact constructionshown and described, but consider myself at liberty to make such changesand alterations as properly fall-within the spirit and scope of myinvention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a wrench, the combination, with a bar having a sliding jaw securedthereon, of an automatically tilting jaw pivoted thereto,substanti'allyas set forth.

2. In a wrench, the combination, with a pivoted bar anda sliding jaw,ofan automatically tilting jaw pivoted to said bar, substantially as setforth.

3. In a wrench, the combination, with a pivoted or hinged bar andsliding jaw, of an automatic tilting jaw pivoted to said bar,'anddevices for locking the said tilting jaw, substantially as set forth.

4. In a wrench,the combination,with a pivoted bar and a sliding jaw, ofa tilting jaw pivoted to the bar, said jaw being recessed and providedwit-h a spring adapted to impinge against the jaw and bar, substantiallyas set forth.

5. In a wrench, the combination,with a pivoted bar and an adjustablejaw, of an automatic tilting jaw, a lever connected therewith, and aspring inserted between the bar and lever, substantially as set forth.6'; In a Wrench, the combination, with arecessed handle, a bar pivotallysecured therein, and asliding jaw secured on said bar, of anautomatically tilting j aw pivoted or hinged to the bar, a leverconnected with the tilting jaw,and a set-screw connected with the leverand adapted to impinge against the bar and lock the tilting jaw againstmovement, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ALBERT LANGSTROM.

Witnesses:

L. Q. OLIOKENGER, J. T. HENDERSON.

